A Hierarchical Key Management Scheme for Authentication of Roaming Mobile Nodes between Domains in Mobile Networks

Kihun HONG
Souhwan JUNG

IEICE TRANSACTIONS on Communications   Vol.E89-B    No.12    pp.3417-3420
Publication Date: 2006/12/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.12.3417
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
authentication,  mobile network,  mobility,  roaming,  handover,  

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This letter proposes a hierarchical key management scheme based on hash key chain for authentication of roaming mobile nodes in both intra-domain and inter-domain. The key management scheme uses a local master key concept for reducing the latency of the authentication procedure and the communication overhead between a home authentication server and an access point in the foreign domain. The proposed scheme also supports secure separation of the authentication key among local authentication servers using hash key chain.